About: http://webisa.webdatacommons.org/151503489

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	As postfix runs with with the postfix user, the csf had made root user owner of the port 25 so no user other than root could sent the emails but forwarded emails were being sent as postfix user.
http://www.w3.org/ns/prov#wasQuotedFrom	serverfault.com